User attributes for logs should be guarded by `sendDefaultPii`

[adinauer]

Integration

sentry

Java Version

any

Version

8

Steps to Reproduce

Send log event with sendDefaultPii set to false.

Expected Result

No user attributes are attached.
See https://develop.sentry.dev/sdk/telemetry/logs/#user-attributes

Actual Result

User attributes are attached

[linear]

JAVA-272